I don't know how available they would be, but LTs are not that uncommon in the US. My brother has just the cab of one that is labled as a "Peterbuilt" that he uses on his sod farm. I have seen them around (just the cabs) on box trucks, etc. So if you checked with the Peterbuilt people you ought to be able to track down a windshield. Just FYI.
Thanks,
Ken Wilford
John 3:16
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